1262471340 has 192 divisors, whose sum is σ = 4243760640. Its totient is φ = 277032960.

The previous prime is 1262471333. The next prime is 1262471341. The reversal of 1262471340 is 431742621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1262471298 and 1262471307.

It is not an unprimeable number, because it can be changed into a prime (1262471341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 249435 + ... + 254445.

It is an arithmetic number, because the mean of its divisors is an integer number (22102920).

Almost surely, 2^1262471340 is an apocalyptic number.

1262471340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1262471340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121880320).

1262471340 is an abundant number, since it is smaller than the sum of its proper divisors (2981289300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1262471340 is a wasteful number, since it uses less digits than its factorization.

1262471340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5072 (or 5070 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 1262471340 is about 35531.2727044782. The cubic root of 1262471340 is about 1080.7879880296.

The spelling of 1262471340 in words is "one billion, two hundred sixty-two million, four hundred seventy-one thousand, three hundred forty".